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If you’re having trouble changing the default app by file type in Windows 11/10, this article provides solutions to help resolve the issue. Windows 11/10 offers built-in options to change default apps for specific file types, such as JPG, PDF, PNG, MP4, and MP3. However, some users have reported issues with using these options to change default apps. Problems include missing “Change” buttons, file types not appearing in the “Set defaults for file types” section of the Settings app, and the “Choose a default” option being greyed out.
To fix these issues, try performing a full antivirus scan and updating Windows. If that doesn’t work, try resetting or uninstalling the problematic app, removing file type associations using the Registry Editor, resetting all default apps using the Settings app, or uninstalling a Windows update.
If a program or app is not listed or associated with a particular file type, you can associate it using the Settings app. If default apps or Microsoft Store apps are not working, try running the Windows Store Apps troubleshooter, repairing the apps, resetting them, or re-registering or re-installing them.
![[Fix]: Invalid Service Installation Section in INF File](https://14um.net/wp-content/uploads/2023/06/fix-invalid-service-installation-section-in-inf-file-310x165.webp "[Fix]: Invalid Service Installation Section in INF File 2")
